TNMG 160412 AH6225 Wendeplatten - Tungaloy

Take advantage of the combination of a PVD-coated carbide grade tailored for stainless steel and a stable 60° geometry to maintain consistent turning quality in mixed-production environments; order the insert directly via Metav Werkzeuge or ask the consultants for application support.

TNMG160412 AH6225 TNMG ISO 160412 turning insert, PVD-coated carbide, 60° — Tungaloy

The TNMG160412 AH6225 is an ISO-standard triangular turning insert for external and internal turning, optimised for stainless steel and medium machining with a sharp, stable cutting edge.

• PVD-coated carbide grade AH6225
• Suitable for stainless steel machining
• Double-sided chipbreaker for chip control
• 60° triangular geometry, 1.2 mm nose radius

High cutting reliability for stainless steel machining

The insert’s PVD-coated carbide grade AH6225 provides a balanced combination of edge sharpness and wear resistance suited to machining stainless steel under variable conditions. The PVD layer increases surface hardness and reduces built-up edge, which translates into longer tool life and more consistent part tolerances when compared with uncoated grades. This behaviour supports predictable cycle times and reduces the frequency of tool changes, helping to keep production flow stable in batch and mixed‑model turning.

Geometry that ensures repeatable dimensional accuracy

A 60° triangle and a 1.2 mm nose radius deliver a reliable compromise between strength and finish. The geometry supports secure seating in ISO turning holders and helps maintain form tolerances during axial and radial cuts. The insert thickness (4.76 mm) and triangular form contribute to rigidity at the cutting zone, while the cylindrical mounting hole provides a positive locational fit. Together, these design elements reduce vibration and permit stable cutting conditions for medium‑depth turning operations where surface quality and dimensional repeatability matter.

Consistent productivity and lower process risk

The double‑sided chipbreaker design combined with the AH6225 grade yields predictable chip formation and reliable edge behaviour across varying feed rates and material conditions. This reduces the risk of unexpected tool failure and scrap, supporting a better cost‑benefit balance over production runs. The PVD coating aids in maintaining a sharp cutting edge under intermittent and continuous cuts, which can reduce rework and contribute to smoother downstream processes such as finishing and assembly.

Simple system integration and application guidance

Integration is straightforward within ISO systems: pair the insert with the correct external holder or boring bar, and ensure matching clamp sets and replacement screws are used for secure fixation. Select the chipbreaker and grade according to component material, machining strategy and machine stability. For roughing with heavier depths of cut, consider more robust clamping and reduced feeds; for finishing, the geometry and 1.2 mm radius support improved surface finishing while retaining edge strength.

For dependable stainless steel turning with Tungaloy AH6225, contact Metav Werkzeuge for tailored advice and immediate supply via info@metav-werkzeuge.com or phone +49 2822 7131930 — Metav Werkzeuge can confirm holder compatibility and stocking details

Technical data

• Article number: 6947377
• Manufacturer SKU: TUN6947377
• SKU: 6947377-Tungaloy
• Manufacturer article number: 6947377

Facts

• ISO designation: TNMG160412
• Geometry: 60° triangle
• Nose radius: 1.2 mm
• Thickness: 4.76 mm
• Size: 16 mm

Special features

• Material: carbide (PVD-coated), grade AH6225
• Application: turning (external and internal)
• Chipformer: double-sided chipbreaker
• Mounting: cylindrical hole, with hole
• Plate form: triangular
• Intended for stainless steel machining
• ISO‑compatible insert series

FAQ

Is this insert suitable for stainless steel?
Yes. The TNMG160412 AH6225 insert features a PVD-coated carbide grade formulated for stainless steel, providing a stable cutting edge for medium machining conditions.

What geometry and edge radius does the insert have?
The insert uses a 60° triangular geometry with a 1.2 mm nose radius, offering a balance between strength and surface finish for a variety of turning tasks.

Can the insert be used in internal turning operations?
Yes. The ISO TNMG format and cylindrical hole permit use in appropriate boring bars and internal holders designed for TNMG inserts.

What chip control can be expected?
The double-sided chipbreaker is designed for predictable chip formation across different feeds, aiding safe evacuation and consistent surface quality.

What information is helpful to check before fitting the insert?
Confirm holder compatibility in terms of form, clearance angle, tolerance class, fastening method, size and thickness to ensure correct seating and secure clamping.

Manufacturer/Responsible: Tungaloy-NTK Germany GmbH, Katzbergstraße 3a, 40764 Langenfeld - Protected trademarks and product names are the property of their respective owners. Brand names and protected trademarks are mentioned solely for explanatory purposes. There is no affiliation between our company and the mentioned brands. The item offered is an original, brand-new product from the manufacturer.